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Single vessel configuration of the supercritical CO2 extraction apparatus: 1, liquid CO2 cylinder; 2, manometers; 3, check valve; 4, CO2 cooler; 5, 6, high-pressure pumps for pumping CO2 and co-solvent; 7, co-solvent addition; 8, preheat coil; 9, extraction vessel; 10, thermometer; 11, static/dynamic valve; 12, collection vial; 13, flow meter gas CO2; 14, CO2 vent.
